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A visitor inspects a display of HTC One M9 smartphones and HTC Grip wearable devices in the HTC Corp. pavilion at the Mobile World Congress in Barcelona, Spain, on Tuesday, March 3, 2015. The event, which generates several hundred million euros in revenue for the city of Barcelona each year, also means the world for a week turns its attention back to Europe for the latest in technology, despite a lagging ecosystem. Photographer: Simon Dawson/Bloomberg